Does dosage in abstinence education matter?

Although past reviews uniformly criticized the efficacy and effectiveness of sexual abstinence in adolescents, new studies dispute the earlier findings. Studies that unpackage intervention programs provide one means of understanding why they succeed in some settings and not in others. This study examined 3183 students spread over 35 schools on the number of hours that they received in sexual abstinence education, in a context of health behaviors promotion. A multi-level analysis (HLM) was performed. The number of hours did not appear to make any difference in the outcome scores. Reasons for this finding are presented and their implications are provided.

Corpo e pós-corpo: Etnias, género, sexualidades e feminismo

Lisa Nakamura: cybertypes. Racialização da Internet: Pós-colonialismo: Edward Said e Homi Bhabha; Resistência ao colonialismo pós-colonial; Fundamentalismo democrático versus opinião pública em sociedades fundamentalistas. Género e sexualidades: Acesso à rede; Inovação tecnológica no feminino; Representações do género; Digital divide e género; Mulheres mais ativas nas redes sociais digitais; Mulheres nos media sociais: razões; Homens lideram blogues; Feminismo no ciberespaço; Projeto1: Mulheres e fundamentalismos; Género e tipos de utilizadores.

Hibridação e pós-colonialismo

A hibridização refere-se a um modo de conhecimento e de ação associados com o híbrido. E esta última idéia denota os interstícios, a rede de relacionamentos, os lugares e as instâncias que, à medida que fundem as suas essências e experiências, geram novas produções e reproduções de si mesmos. O hibridismo é percebido por várias escolas de pensamento e por muitos autores literários como uma das principais armas contra o colonialismo. Isto é especialmente verdadeiro para os teóricos do pós-colonialismo, como Edward Said e Homi Bhabha. Se o entendimento do hibridismo é fundamental para a reflexão que os Estudos Pós-Coloniais empreendem sobre a nossa sociedade intercultural, também é verdade que essa escola de pensamento mostra-se, ela própria, híbrida desde as suas origens. Na verdade, na nossa era pós-colonial, os textos literários e até mesmo a escrita científica (histórica, sociológica, etc ) exibem uma natureza cada vez intercultural. Mas como podem estes ‘Estudos Híbridos’, de que uma manifestação recente é a Hibridologia, através de um historiador, um sociólogo, um antropólogo ou um crítico literário, detectar tais significados públicos polissémicos que conduzem a uma mais intensa comunicação intercultural? Uma das respostas possíveis pode ser a seguinte hipótese: além da leitura e escrita de saberes especializados, os conceitos comuns (um termo central na fenomenologia sociológica de Alfred Schutz), utilizados por pessoas comuns de diferentes origens culturais numa base diária, pode constituir uma das chaves para a compreensão mútua entre as diferentes culturas hoje interligadas nas nossas sociedades pós-coloniais globais.

The family haloplasmataceae

Haloplasmataceae is a family within the order Haloplasmatales, which currently includes one single genus and species: Haloplasma contractile. This family has unusual phenotypic features the most noticeable being a unique morphology and cellular contractility cycle and a distinct phylogenetic position between the Firmicutes and the Tenericutes (Mollicutes). Members of the Haloplasmataceae have been isolated from the upper sediments of a deep-sea anoxic brine in the Red Sea, but cultivation-independent studies have found related sequences in a wide range of biotopes including other extreme environments, contaminated soils and marine sediments, as well as intestinal samples. The isolation and description of new representatives of this family might therefore result in significant changes to the current description.

The Family Salinisphaeraceae

The family Salinisphaeraceae (Class Gammaproteobacteria, Order Salinisphaerales) comprises a single genus, Salinisphaera, and six species: S. shabanensis, S. hydrothermalis, S. dokdonensis, S. orenii, S. halophila, and S. japonica. All members of the family Salinisphaeraceae were isolated from marine/oceanic and high-salinity environments. These bacteria have coccoid or short rod morphologies and are halophilic or halotolerant. All known members of the family Salinisphaeraceae are heterotrophic, mesophilic aerobes, although S. hydrothermalis was shown to be a facultative chemolithoautotroph. Isolation and characterization of new members of the Salinisphaeraceae, as well as in-depth studies of the currently known species, will allow for a better understanding of this family.

Employment, turnover and career progress

The severe economic downturn that followed the Global Financial Crisis of 2007 was accompanied by major fluctuations in the labour market. During the Great Recession the rate of job destruction was such that, by 2013, active population was at levels of 1999; employment levels were at an historical minimum; and the unemployment rate soared to 17,5%. This chapter inspects the dynamics behind the aggregate fl uctuations in the labour market and studies the determinants of mobility within (promotions) and between fi rms, and whether these have changed during crisis, using Portuguese (LEED) data. During crisis women became more likely to make between- rm moves with short gaps of unemployment and less likely to find a new job after a long gap or to make a job-to-non-employment transition. More educated workers are less likely to experience between fi rm job mobility, both before and during crisis, and became less likely to make job-to-non-employment transitions during crisis. Young workers are the group that most suffered from crisis: they became less likely to make job-to-job transitions and their hazard of experiencing a transition into unemployment shoot up.